SS roller rockers EQ heads

[cwkerr007]

I have a 2000 5.9 that P.I.E. upgraded the heads (supposed to ) I asked for steel rockers (specifically ) and was sent a generic set of aluminum ones and when I confronted him about it his answer was I don't know anyone who makes those. At that point I knew I had made a mistake letting this person do work for me. So the reason I included that in my post is so #1 don't deal with him #2 these are the heads I have to work with. So the reason for post is I'm looking for MAGNUM MOTOR STUD OR PEDESTAL MOUNT ROLLER ROCKERS. I also asked for beehive springs and did not receive them either. So I'm assembling the engine now and am searching for a magnum first hand knowledge guy (major tom to ground control).

 

[JDMopar]

I'm by no means an expert but will share what my buddy who is a race engine machinist and engine builder did to a Magnum headed 360. He used small block Chevrolet pedestal mount roller rockers on the 360 he built for a guys 4WD truck. He did something that was different with the studs, but other than that, they were a bolt on and worked well. I can't remember what he did with the studs, but want to say he had to retap the holes in the pedestals for a different size. Do a little research on the Chevy rocker to Magnum conversion and see if it sounds like a solution for you. Hopefully, some of the really knowledgeable Magnum motor guys like @TT5.9mag and a few others will see your thread and chime in. Sorry for your troubles, and good luck to you.

 

[TT5.9mag]

Kind words @JDMopar thank you. The Chevy pedestal mount rockers do work on a magnum with a conversion stud. I believe ARP makes it. I have never done it but lots of people have. That would give the OP the choice of whatever rocker he could dream up as I’m sure there are hundreds of different rockers for small block Chevy stud mounts.
Crane Cams 36655-16 Crane Rocker Arm Guideplate Conversion Kits | Summit Racing
This used to be the easy button, but crane is no longer in business, although there are other ways to get there.

 

[DionR]

I wonder if this kit would work.

COMP Cams 4504-16 COMP Cams Magnum Rocker Arm Studs | Summit Racing

 

[DionR]

Or this one

COMP Cams 4542-16 COMP Cams Magnum Rocker Arm Studs | Summit Racing

 

[67plysat]

I installed the Hughes 1550 rockers arms on a set of Engine Quest heads about 10 yrs and 10k miles ago, no problems so far. I think they are basically Chevy rockers on adapter studs.

The only odd part was very little thread engagement on the adjusters. I called Hughes, he said it's normal and hasn't casued any problems. No problems so far with mine, I don't really rev it past 5500 RPM.

https://www.hughesengines.com/Index...a2VyIEFybXMgJiBBY2Nlc3Nvcmllcw==&partid=25405

 

[408 swinger]

I installed the Hughes 1550 rockers arms on a set of Engine Quest heads about 10 yrs and 10k miles ago, no problems so far. I think they are basically Chevy rockers on adapter studs.

The only odd part was very little thread engagement on the adjusters. I called Hughes, he said it's normal and hasn't casued any problems. No problems so far with mine, I don't really rev it past 5500 RPM.

https://www.hughesengines.com/Index...a2VyIEFybXMgJiBBY2Nlc3Nvcmllcw==&partid=25405

That's the link i posted on his other thread. They are indeed a "chevy" rocker. They are a 1.65 ratio, so that they will yield the actual 1.6 on the Mopar.

 

[cwkerr007]

Guy's I really appreciate your efforts to help . I have found prw rockers $320 and as far as the studs go I have the conversation studs and the guides to install 3/8 stud mounted rockers . And I have a no faith in set of alum r r that are going to be key chains i give away to everyone at Christmas EXCEPT PERFORMANCE INJ EQP LOL i even have the locknuts but no one will sell me just the roc so i gave up on that and went with prw cause at $320 and called and confirmed they will work what else could i ask for ?? (A fat girl with a job and no self-esteem ) so I still never heard from an actual hands on confirmed runner of chevy rollers on a magnum ??? I'm like ya'll I hear about it but no real confirmation but thanks again I'll post my build when i get to that part!

 

[go-fish]

@TT5.9mag This begs the question, what is you preferred rocker to the Magnum head or do you go LA on a Magnum block?

 

[cwkerr007]

@TT5.9mag This begs the question, what is you preferred rocker to the Magnum head or do you go LA on a Magnum block?

Yes that would be a brain teaser I personally if budjet not a factor I would go shaft mount no dought but in my case I have new eq heads so I'm stuck

 

[go-fish]

Yes that would be a brain teaser I personally if budjet not a factor I would go shaft mount no dought but in my case I have new eq heads so I'm stuck

I have a NOS Magnum bare block with dealer stickers still on it. Someday I want to build it and, while years away, I routinely think about the direction the build should go. The cylinder head choice is something that internally debate. Edelbrock Magnum's or Edelbrock or TF LA? I think I'm going to stay true to my original motivations and take advantage of the tall, un-chamfered, lifter bores for a streetable hyd roller lifter but build it like an LA (heads, w/p, and intake).

I was going to suggest looking into UTAWESOME PERFORMANCE for what really works on Magnums.

 

[TT5.9mag]

@TT5.9mag This begs the question, what is you preferred rocker to the Magnum head or do you go LA on a Magnum block?

I made over 700hp with stock rockers. So that begs the question are aftermarket rockers even necessary? I used Harland sharp 1.6 on a magnum that was for a friend and really liked them but they were non adjustable and pushrod length must be spot on. I used a comp Chevy pedestal mount adjustable on a 5.2 with a conversion stud but it was 15 years ago and I don’t remember whose stud it was. Those worked just fine also. My current 5.9 is getting W2s, so offset shaft setup that Mike at B3 scienced out for me. Whichever rocker you use, take some time making the geometry right and measuring for pushrod length and it’ll be fine.

 

[go-fish]

I made over 700hp with stock rockers. So that begs the question are aftermarket rockers even necessary? I used Harland sharp 1.6 on a magnum that was for a friend and really liked them but they were non adjustable and pushrod length must be spot on. I used a comp Chevy pedestal mount adjustable on a 5.2 with a conversion stud but it was 15 years ago and I don’t remember whose stud it was. Those worked just fine also. My current 5.9 is getting W2s, so offset shaft setup that Mike at B3 scienced out for me. Whichever rocker you use, take some time making the geometry right and measuring for pushrod length and it’ll be fine.

Yes, I was going to mention that to the OP when the mention of Chevy pedestal rockers came up.

 

[mopar65]

Guy's I really appreciate your efforts to help . I have found prw rockers $320 and as far as the studs go I have the conversation studs and the guides to install 3/8 stud mounted rockers . And I have a no faith in set of alum r r that are going to be key chains i give away to everyone at Christmas EXCEPT PERFORMANCE INJ EQP LOL i even have the locknuts but no one will sell me just the roc so i gave up on that and went with prw cause at $320 and called and confirmed they will work what else could i ask for ?? (A fat girl with a job and no self-esteem ) so I still never heard from an actual hands on confirmed runner of chevy rollers on a magnum ??? I'm like ya'll I hear about it but no real confirmation but thanks again I'll post my build when i get to that part!

When I bought the 360 magnum off a guy I new. He was runing EQ heads, comp 555 solid flat tappet cam and oil through push rods. He also was running chevy 1.6 PRW stainless steel rockers, guide plates and screw in rocker studs. The engine saw 7000 rpm all the time. I ended up having 2 rocker arms come lose and mess up the valve stems. I think which was my fault. This engine sat fir over a year before I got the dakota running. I think he backed them off for storage and I forgot to check them before I started the truck. I ended up buying a set of trickflow heads and put them on my dakota. The EQ heads with the chevy prw rockers ran for two years being raced before I bought the engine. Here are some pictures of the eq heads and rockers

 

[cwkerr007]

After all the responses to this industry sticking it to the small block mopar AGAIN , I came to the conclusion that B3Racing Engines has this problem beat to death and has explored and worked around the ever so annoying customer with the same question I get asked every day problem . He took a big stick full of knowledge and tapped me on the head. So I went down and laid there absorbing the knowledge and realized I just lived through a fight with Andre the Giant and never got to throw a punch! So if this subject is brought up again I have no opinion and bow to my better. It was like when the beatles met ELVIS they went through a long ride to get there and then through security and a bunch of doors and walked in and there was Elvis and all 4 beatles just stood there staring at him and fianally Elvis said "If you guys sre just gonna stand there and stare at me I'm just gonna sit over here and play my guitar! " and paul later said "We walked in and He was so good looking in person that we were speechless" and thats what I felt like after talking on the phone with B3R . Like someone who wasn't an Elvis fan but got in an elevator with him and walked out the elevator saying what just happened! I hope everyone enjoyed my plug for B3 Racing Engines who gracefully supplied me with all the right notes to the song .

 

[go-fish]

@cwkerr007 ,
Thanks for your insight. Because of this thread I skipped my original plan (PIE Stage 2) and sourced my bare Mag heads directly from EQ. I had them drop shipped to Cogswell Motorsports for porting. I also bought a spare keg and sent it to him with the full Utawesome reduced volume plates to be welded in.
This is all going on my ‘98 ZJ Jeep 5.9 Limited.

 

[cwkerr007]

@cwkerr007 ,
Thanks for your insight. Because of this thread I skipped my original plan (PIE Stage 2) and sourced my bare Mag heads directly from EQ. I had them drop shipped to Cogswell Motorsports for porting. I also bought a spare keg and sent it to him with the full Utawesome reduced volume plates to be welded in.
This is all going on my ‘98 ZJ Jeep 5.9 Limited.

I'm happy to help a fellow jeepster (97 sahara 4.0 all oem ) I'm sure the day is near when I will need your advice (280k on Sarah) cause she is getting long in the tooth and I have a dakota v6 bell housing so I can slip one of my 318 's in her while my wife is asleep cause she won't let me play with her unsupervised lol. She said I have enough toys of my own leave hers alone lol. I would love to see your motor mount and radiator set up if you wouldn't mind.

 

[go-fish]

I was originally looking at 4.0 XJs and Wranglers because I have a totaled 104k miles 2.0 TDI turbo diesel. TD Conversions makes a TDI adapters for man different trans from Tacomas to Jeeps.
The 5.9 ZJ came along and had to have it. 1 year only for any 5.9 in any Jeep.
Now the only other option for me to use the diesel is to put it with an AX15 Jeep manual in a light A-body and make an ultimate fuel miser . But, that’s a WHOLE different can of worms.
Im’a going to pm you so we don’t booger up your magnum thread.